This file contains the main data for the vernalization duration study in 'Variation in seasonal timing traits and life history along a latitudinal transect in Mimulus ringens' in JEB 2021 (Vest and Sobel). Each row represents an individual in the experiment, and the columns represent: 1) Pop = Population code used throughout experiment. 2) Family = a unique family ID representing offspring from a single field collected plant. 3) PC1 = The first principal component from an analysis of climatic variation across sampling sites. 4) latitude = latitude corresponding to population site. 5) longitude = longitude corresponding to population site. 6) TreatDay = treatment in vernalization duration experiment, i.e. the number of days spent in 4C vernaization. 7) Fyn112 = The binary (yes/no) flowering success response variable for each individual across 112 days of observation. 8) DayTF = Days to flowering after return to greenhouse conditions (post experimental treatment). For any individuals that failed to flower over the 112 day experiment 'ftf' is entered.